Ice-cream freezer.



'No. 835,514. PATENTED NOV. 13, 1906.

' J. H. GENTER.

ICE CREAM FREEZER.

APPLICATION FILED SEPT. 6. 1905.

V 2 SHEETS-SHEET 2 S I Q Vii 27' A G G I, vJ I j f Nd. 835 514. I

, PATENTEDNO'V. 13, 1906.

J. H. GENTER.

ICE CREAM FREEZER.

APPLICATION FILED SEPT.6.1905.

2 SHEETS-SHEET 2 UNITED STALIES PATENT OFFICE. I.

J AOOB H. GENTER, OF ALBANY. NEIV YORK, ASSIGNOR OF ONE-HALF TO JOSEPH A. LAWVSON, OF ALBANY, NEW YORK.

ICE-CREAM FREEZER.

Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed September 6,1905. Serial No. 277,147. I

T0 at whom it may concern.-

Be it known that I, JACOB H. GENTER, a citizen of the United States, and a resident of Albany, in-the State of New York, have invented certain new and useful Improvements in Ice-Cream Freezers, of which the following is a specification.

The object of the present invention is to provide a freezer which is capable of freezing two or more kinds of ice-cream at one time and in a single tub. Broadly, this is not new, since attempts have been made to effect the object, one of which consists of a number of cans superimposed, the bottom of one can forming the top of the one beneath it. The difficulty with this is that it is impossible to keep the oints between the cans tight enough to prevent salt water getting in and spoiling the cream. Vertically-divided cans have also been tried; but the agitating devices have not worked satisfactorily with these, since they must reciprocate and not rotate, and thus leave certain dead spaces. For these I substitute cans nested one within the other and vertically displaced, so that the larger outer can may contain cream in the lower part and have within it the ordinary dasher, while a smaller inner can occupies the top portion of the outer can and has its independent agitating devices. Various devices may be made within the scope of the general arrangement outlined.

The accompanying drawings show an embodiment of my invention in two forms, Fig ure 1 illustrating the preferred form, and Fig. 2 a modification. Fig. 3 is a detail.

In Fig. 1, A is the tub, containing a stepbearing A, which supports the outer can B by a journal B, which revolves within the bearing A. Lugs B such as are commonly employed to reinforce the can and support it when the handle is removed, are provided. A circumferential corrugation B is made around the can at approximately its middle, and upon this rests the inner can D, which is provided with a sleeve or tube D, through which passes the shaft of the mechanism presently to be described for agitating the cream. The cans have a common cover E. In the lower can is a spider F, carried by or integral with the sleeve F and provided with projecting arms f, of any usual construction, and wings f, which scrape the cream from the walls of the can and force it toward the center in a well-known way. In the upper can another detachablespider G, provided with spider-arms g and scrapers G, is similarly operated by the sleeve F. The arrangement of spider and sleeve is indicated in Fig. 3, the spider having a square opening and dropping over the sleeve. Below the spider, however, the sleeve F is round, and

the projecting parts (shown in the circular,

dotted lines) form shoulders which support the spider. Passing through the sleeve F is a shaft O, provided at its bottom with a ring O, which supports the spider F and sleeve F. The bottom of the shaft is square and enters the journal B, rotating the can by means thereof.

' I do not illustrate the mechanism for rotating the spiders and cans, since any of those usually employed may be adapted to the purpose of my invention.

In Fig. 2 the parts are in general similarly arranged; but in the lower can the arms or wings are formed upon the shaft O and are lettered c. A joint is also formed in the shaft at c with a tongue and groove or any other mechanical loose connection. The can D is also provided with an overhanging lip d, and the corrugation in the middle is dispensed with.

After the cream is frozen the upper can may in either case be lifted up bodily, leaving the dasher, sleeve, and shaft in the lower can. These may then be removed and cleaned and the cans reassembled and packed for hard freezing in the usual way.

The use of more than two cans is an obvious extension of the principle of my invention, unnecessary to be described, and is intended to be within the scope of my claims.

It will be seen that my improved freezer provides an integral can extending substantially from the bottom to above the top of the freezing mixture, so that there can be no leakage of salt water thereinto, and by bringing the two cans with their cylindrical envelops substantially into contact there is no insulating-space between them across which the heat from the cream must be transmitted to be absorbed by the freezing mixture. The two advantages here pointed out have been absent from those ice-cream freezers (of the class to which my invention relates) with which I am acquainted, and, so far as I am aware, none of the several plans proposed has been acceptable.

Having thus described my invention, what I claim, and wish to protect by Letters Patent of the United States, is

1. In a freezer for ice-cream and similar articles, the combination of two cans, one nested within the other so that their cylindrical envelops are in substantial contact, with supporting means arranged to hold one of the cans in the upper part of the other and agitating devices for the cream in each of the cans.

2. In a freezer for ice-cream or similar articles, the combination of a larger outer can and a smaller inner can disposed in the upper part of the larger can and having the cylindrical envelop in substantial contact with that of the larger outer can, with agitating devices disposed within each of the cans, means for driving the agitating devices, and means for rotating the cans.

3. In a freezer for ice-cream or similar articles, the combination of an outer can having a closed bottom and an inner can disposed in the upper part of the outer can, the outer can extending substantially to the top of the inner can, and their cylindrical envelops being substantially in contact, with agitating means in the cans.

4. The combination, in an ice cream freezer, of an outer can having a circumferential corrugation at about its middle, an inner can fitting within the outer can and supported by the corrugation, with agitating means in each of the cans.

5. The combination, in an ice -cream freezer, of an outer can, an inner can supported therein, the inner can provided with a central tube, and containing an agitator, a shaft and sleeve passing through the tube into the lower part of the outer can, and a spider, supported upon and rotated by the sleeve, Within the lower part of the outer can, the shaft rotating the can itself; as described, and for the purpose set forth.

6. In an ice-cream freezer, an outer and inner can and agitating means for use therein, comprising a sleeve passing through the inner can and made integral Witha spider, and a detachable second spider within the inner can, supported upon and rotated by the sleeve.

In Witness whereof I hereunto subscribe my name, in the presence of two witnesses, this 31st day of August, 1905.

JACOB H. GENTER.

Witnesses:

OnAs. H. MILLs, BORDEN H. MrLLs. 

